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Journal of Infrared, Millimeter, and Terahertz WavesVolume 35, Issue 10, October 2014, Pages 860-870

Microwave dielectric properties of ceramic and nanocomposite titanates of transition metal(Article)

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  • aInstitute of Metal Physics, Ural Branch of Russian Academy of Science, Ekaterinburg, 620990, Russian Federation
  • bState Social Pedagogical Academy, Nizhny Tagil, 622031, Russian Federation
  • cInstitute of Chemistry, Ural Branch of Russian Academy of Sciences, Syktyvkar, 167982, Russian Federation
  • dCentral Research Technological Institute TECHNOMASH, Moscow, 121108, Russian Federation

Abstract

Ceramic and nanocomosite samples of the titanates of transition metals have been synthesized and their microwave dielectric properties have been investigated. Frequency and magnetic field dependences of the transmission and reflection coefficients in centimeter and millimeter wavebands were measured. It is established for most of studied ceramic titanates that transmission coefficient increases and reflection coefficient decreases when frequency increases. An absorption maximum has been found for ceramic sample made of Co0.9Fe0.1TiO3. The real and imaginary parts of complex dielectric permittivity were determined from measurements of transmission and reflection coefficients. On the whole, real part of dielectric permittivity of nanocomposite titanates based on an opal matrix is less than for ceramic titanates. © 2014 Springer Science+Business Media New York.

Author keywords

Ceramic titanateComplex dielectric permittivityElectromagnetic waveguideNanocomposite titanateOpal matrixTransmission and reflection coefficients

Indexed keywords

Engineering controlled terms:Ceramic materialsNanocompositesPermittivityReflectionTransition metals
Engineering uncontrolled termsCeramic titanateComplex dielectric permittivitiesElectromagnetic waveguidesOpal matrixTransmission and reflection coefficient
Engineering main heading:Titanium compounds

Funding details

Funding sponsor Funding number Acronym
Ministry of Education and Science of the Russian FederationMinobrnauka
Ural Branch, Russian Academy of SciencesUB RAS

  • 1

    Acknowledgements The work is carried out with partial support of the Grant from Russian Ministry of Science and Education within p220 Program, NSh-1540.2.2014 grant and the project of Ural Branch of Russian Academy of Sciences. The authors express their thanks to V.G. Pushin, V.S. Gaviko and A.V. Korolev for the electron microscopic study, X-ray phase analysis and magnetic measurements carried out in the Testing Center of Institute of Metal Physics.

  • ISSN: 18666892
  • Source Type: Journal
  • Original language: English
  • DOI: 10.1007/s10762-014-0088-6
  • Document Type: Article
  • Publisher: Springer New York LLC

  Perov, D.V.; Institute of Metal Physics, Ural Branch of Russian Academy of Science, Russian Federation;
© Copyright 2016 Elsevier B.V., All rights reserved.

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